Centrifugal separator.



G. M. LESHBR. GENTRIFUGAL SEPARATOR.

APPLIOATION mum 001. 10, 1911.

1,026,271 Patented May 14, 1912.

3 SHEETS--SHEET1.

M 2 Fig.1.

I 42. J" l '4 nuI!1rinnilmiuumlummqlll INVENTOR G. M. LESHBR. OEN'I'RIPUGAL SBPABATOB. APPLIOA'I'IOI mm 001210, 1011.

1,026,271. Patented May 14, 1912.

3 SHEETS-SHEET 2.

, I IIIVEIITOR.

w arranm'.

G. M. L'BSHER.

GBNTRIFUGAL SEPARATQB. APPLwATIon rum; 001210, 1911.

1,026,271 Patented May 14, '1912.

3 SHEETS-SHEET 3.

INVENTOR.

- of; thelfluid; "moving "GEORGE m. LESHEB, F NEWARK, NEW JERSEY.

cEnrRIEUosL SEPABATOR.

1'0 alt whom it may concern: I Be it known thht I, GEORGE M. Lassen, a 'citizen of the. United States, res1d1ng at Newark, int-he county 'of Essex and State of 3 New. Jersey, have invented certain Improve ments in Centrifugal Separators, of which .-the following is a specificggionr The objects of this inve tion; are to pro- .-vide in the bowl of a centrifugalseparator a 10 plurality of disks'adapted to se arate the liquid into layers, which disks ave their lower-edges arranged at differerit'radial dis- "tancesfrom the central :axial. line of the fftodoca'te' said lowenedges; ata dis- 5' t anc above thebottom of the bowl and thus "renablefthm liquid Ito-feed directly into all "thelspacesfbetween id disks; to lpcatesmd lowerlcr esat'difier nt distances above the floorlof t efbofwl-so the lighter portion orizont-ally inward, -i-will*niiturallyigenter the spaces between the disks; to increaseoutwardly the height from the'flbor-ofthebowl of said-lower edges of ,suchtsuccessive-disks at. thev bottom of a bowl, so'as to rovidelmore space radially 1 outwardj towar Jtheperipheryof the bowl; 'to, secure; separator bowl of hlgh etfi ciencyi'and simpleconstruction, and to ob- 1 iftain othe'ri a' vantages and results, as may 80. b brough ou rr' thejfollowing description. Befe'rrin to-the accompan ing drawings, fin-which e numerals of re erence indicate T the sameiparts 'throughout the several views,

Figure 1 is aside elevation of a centrifugal bowl'embod ing my improvements; Fig. 2 is a centra vertical section of the same taken on line, A--A of Fig. 4, looking in the direction indicated by. the arrow; F 1g 3 v is"a., po rtion of a section similar to Fig. '2 40 illustrating the up lication ofmy invention tof-the .top disks 0 a bowl; Fig. 4 is a plan ofthe ,bowl with its cover and Interior disks .reuioved showing (the center tube, feed. "plate and wings thereon; F1 5 is a secstional view'of a portion of te feed plate showing one of its upper and lower wings in side elevation; Fig. 6 1s a plan of a cer- -ftain disk;'Eig. 7 is a detail view illustrating certain means for holding'the; disks spaced from one another; Fig. B fis-a central vertical section similarjto Fig. 2, .iilustrat-mg a Specification of letters Patent. ammals October 10, 1911. Serial No. 653,824.

Patented May 14,1912

bottom 3 with an interiorly-threaded peripheral flange 4 by which it can be screwed onto the cylindrical body 5 of the bond and firmly soldered thereto as usual.

A removable feed tube 6 is arranged centrally and airiallyof thebowl, said feed tube having at its lower .end a radially projecting feed plated! which is held a little above the floor of the bowl, parallel thereto,

and extends at its edge close to the side wall of the bowl, being preferably notched at one a point of said edge, as at 8, to receive-a projection 9 on the bowl body and thus-be kc d to rotate with the bowl. Said feed tn 6 is. perforated adjacent to its feed plate 7, as-at.10, and said feed plate is also perforated outside the tube, as at 11,:-.for the passage of liquid to be separated. The bowl body 5 is exteriorly threaded at its top to receive the correspondingly threaded flange .12 of a cover 13, which cover is in general conical with a cylindrical portion 14 at its top whose side walls lie at a little distance from the central tube 6 and whose top is apertured to fit around-the said tube;

Within the bowl and above the feed plate 7 are arranged interior disks whichsurround the central feed tube 6 and have'each an annular downwardly flaring flange orconical portion, said disks being nested in a vertical series within the. centrifugal bowl.

The lowest disk has its peripheral edge a sutiicientdistance above the feed plate 7 to allow proper passage of the fluid to be separated, and is at said edge of much smaller diameter than the diameter of the bowl. Preferably the next disk is at its peripheral edge of greater diameter so as to lie nearer the walls of the bowl, and similarly each.

next outward disk .is of greater diameter than the preceding one, so that the lower edges of the disks form a stepped series extendin from the lowest disk outwardly to the walls of the bowl, as shown. This series of lower edges may extend outward in an inverted conical surface, as shown, or in any other sha ped surface which can be obtained by varying the slant heights of the conical disks.

Particularly in clarifying or removing a sediment from a liquid, the form shown in the drawings is especially desirable, as it affords ample-space for the accumulation of sediment next the walls of the centrifugal bowl.

Preferably, the lower edges of the disks and the under surface of the lowest disk engage wings which are-fixed upon the feed plate 7, and so shaped at their u per edges as to properly support the di These wings 15 extend from'the feed tube 6 outward to the edge of the feed plate and are of any suitable number, asthe four shown ;in Fia Other win -16 are arranged upon t bottom of the eed plate 7 to space the same from the floor'of the bowl.v

'10 The disk or disks of lar est-diameter may terminate short of the wa ofthe bowl,- as illustrated by the disk 17 in 8, or may seat at its peripheral edge upon a shoulder i -18 in the si e walls, as shown by the disk 19 15in Fig. 2 In'the former case u -flowwill takeplace between the o of .t e disk 17 and'the wall of the'bowl, nd in the latter case a series of apertures 20 must be provided in the disk for such flow. At the up- 29 per part of the bowbth'ere may also bea stepped series-of disks, if desired, as shown in. ig. 3, each next upper disk being at lts peri ral edge of less diameter than the one elow. I In any event, the top disk which is marked 21 in Figs..2 and 8has at its top a cylindrical neck 22 which divides the neck of-the cover.13 into annular inner and outer flows aces 23 and 24,'irespectively. From aothese owspaces outlets 25 and 26, respec -tively, are provided for the escapeof liquid,

as is common, said outlets being in the neck 'of the cover. Each of the'disks below said top. disk has at its upper small end an in- '35 wardly extending horizontal flange which ,fits against the feed tube6, and by means of these flanges the *disks are preferably all loosely keyed to the feed tube, as shown at 27 in Fig. 4. Furthermore, these horizontal flanges of the disk are perforated, as at 28,

to permit the up-passage of the light portion of a liquid to be so arated.

Various disks 0 the series are spaced from each other and from the cover in any suitable manner, although I have shown it :done by means of wings 29 on the top disk 7 which engage the cover and spacing projections 30 on the next disk and every alternate onethereafter. Theses acing projections I have shown'formed by ittle strips of sheet metal having their ends thrust through slits in the conical portion of the disk and bent over flat against the other side, and said projections are suitably distributed to support the disks. In the construction illustrated in Fig. 3, auxiliary wings 31 are of course arranged in alinement with the wings 32 on the top disk which have been already described in connection with the other figures of the drawing.

In the operation of my improved separat' r, the liquid which is fed down through the tube 6 and up through the feed plate 7 .is to a large extent se 'arated into its light and heavy portions fore reaching the shown, the partially separat ,tical series of disks having conical portions noses-:1

disks at all, and the light portion passes through. the holes of the lower disk and so on to the outlet at the top of the bowl. If the disks are arranged with their lower edges in an ascending step ed series, as-

heavier portion of the liquid finds a ready entrance between the successive disks of the series and is thus divided into thin layers between said disks, such layers bei 1 taken successively oif of the inner perip cry of an annular body of liquid ima ed to be moving upward in the bowl. %i nall the outer heaviest portion escapes throng the openings 20 and is subjected to a lastseparation in-passing down aroundthe'lower edge of the top disk and'goes -u between the same and the oovei to its on ets 26.

asshown in Fig. 3, this last se aration o the heavy portion of the liquid is extended a and made more efiective because the stepped disks provide-spaces for. layers of the inwardly. crowding-lighterportions, where still furtherseparation can take place and- 5 an opportunity he given'ffor light particle stoesca' Havmgthus' described the invention, what Iclaimiszq 1. In a centrifugal separator bowl," avertical series of disks havmg'conical portions flaring downwardly outward and-ierminatg ing at their edges-at'difi'erent radial "dis tances from the axis of rotation of the-bowl,; said edges being free and s aced from each other and the other parts 0 the bowl, means forfeeding liquid against said edges, and discharge means. I p

2. In a centrifugal separatorbowl, avertical series of disks having conical portions flaring downwardly'outward' and terminating at their edges at difierent radial'distances from the axis of rotationpfthe bowl and at different heights from the floor of the bowl, said edges being free and spacedfrom each other and the other partsof the .bowl, means for feeding liquidughinstsaid.

edges, and discharge means.- a

3. In a centrifugal separator bowl, a ver- 11b flaring downwardly outward and terminatingat their edges at different radial dis.- tances from the axis of rotation of the bowl, the ower edges of said disks lying-in a sinface flaring upwardly outward and being 1;; free from other parts of the bowl so as-toprovide a flow space past themselves, means; for feeding liquid against said edges, and discharge means. 1

4. In acentrifugal separator bowl, a ver- 12b tical series of disks having conical portions flaring downwardly outward and terminating at their edges at different radial 'distnnces from theaxis of rotation of. the bowl, the lower edges of said disks lying in a 15in dial distances from said eed tube, said edges being free and spaced from each other and the other parts of the bowl, means for feeding liquid against said edges, and discharge means. i

6. In' a centrifugal separator bowl, the combination witha central axial feed tube and suitableadischarge means, of a vertical series of disks on said feed tube apertured adjacent thereto and having oute'r conical portions flaring downwardly outward and terminating at their edges at different radial distancesfrom said Ife'ed tube andat difl'erent heights from the floor of the bowl,

said'edges' being free and spaced from each other and the other partsof the bowl, means for feeding liquid, against said edges, and

discharge means .7.'In a centrifugal separatorbowl, the

. eombination'with a central axial feed tube and suitable discharge means, of a vertical series'of disks on said feed tube having flat apertured portions adjacent thereto and outer conical portions flaring downwardly outward and terminating at their edges at difi'erent radial distances from the feed tube and at difl'erent'hei hts from the floor of the bowl,saidlower1e ges lying in a surface flaring upwardloutward.

8. In a centrirugal separator bowl, the combination with a central axial feed tube and suitable discharge means, of a verticaL series of disks on said feed tube having flat. apcrtured portions adjacent thereto and outer conical portions flaring downwardly outward and terminating at their edges at different radial distances from the feed tube and at different heights from the floor of the bowl, said lower edges lying in a substantially conical surface flaring upwardly outward. V

9 in a centrifugal separator bowl, a disk havinga downwardly flaring conical portion in impervious relation at its edges to the wall of the bowl and apcrtured at a distance from said edges, and a series of similar disks adjacentto said first-mentioned disk, the disks of said series decreasing in diameter away from said first-mentioned disk and being free at their edges from the other parts of the bowl so as to provide a flow space past themselves, means for feeding wall of the bowl and apertured at a distance wardly and being free at their edges from liquid against said edges, and discharge means.

10. Ina centrifugal separator bowl, a diskliai ing a downwardly flaring conical portion v in impervious relation at its edges: to the from said edges, and a series of similar disks beneath said first-mentioned disk, the disks f of said series decreasing in diameter downthe other parts'of the bowl so as to provide a flow space past themselves,'means fori'.

feeding liquid against said edges, and discharge means.

11. In a centrifugal separator bowl, I

having adownwardly flaring conical pfors tion in impervious relation'at itsedgesftothe .wall of the bowl and apertured'at a. distance from said edges, a series of similar disks beneath said first-mentioned di'sk,"t he disks of said series decreasing in diameter downwardly and having their edges lying I i in a substantially conical surface 12. The combination with a. centrifugal A bowl having a cover with a conical portion and a cylindrical top, of a top disk. having a conical portion lying in said conical p l tion of the cover and a neck extendinginto. said cylindrical portion, a seriesof j disksj lf' which terminate at their edges at different-:1

below said top disk having conical portions radial distances from the axis ofrotation'oi the bowl, and means said disks. v v 1 13. The combination with. a centrifugalfl and a cylindrical top,-of a top disk having a conical portion lying in said conical tion of the cover and a neck extending lnto said cylindrical portion, a series ofdisks for feeding liquid-gtofl .100 bowl having a cover with a conical portion below said top disk having conical portions which terminate at their edges at different radial distances from the axis of rotation of the bowl and at different heights from the" bottom of the bowl, said edges being free and spaced from each other and the other;

parts of the bowl, means for feeding liquid against said edges, and discharge means.

14. The combination with a centrifugal bowl having a cover with a conical portion 5 and a cylindrical top, of a top disk having a conical portion lying in said conical portion of the cover and a neck extending into said cylindrical portion, a series of disks below said top disk having conical portions whose edges lie in a downwardly and anwardly converging surface, and means ,for r feeding liquid to said disks. v

15. The combination with a centrifugal bowl having a cover with a conical portion and a cylindrical top, of a top disk having a conical portion lying in said conical portion of the cover and a neck extending into said cylindrical portion, a series of disks below said top disk having conical portions 1 30 ries of disks whose edges lie in an inverted substantially conical surface terminating short of the liquid to said disks.

bowl, and

6 In a-centrifugal bowl,- a vertical sefrom the axis of 'fi'erent heights tending .across the disks, and means to ing liquid.

having conical dqwnwardly outward and their edges at different portions flaring terminating at radial distances rotation of the bowl and at from its floor, win s exstepped edges or said 1 feeding and discharg- I means for feeding and terminating radial distances from .said .feed tube and fat- 17. In a centrifugal bowl,v a central-axial feed tube with a projecting feed plate, agseries of diskson said feed tube havingconi; cal portions flaring downwardly outward at their edges at difieren't different Heights from said feed plate, and 20 wings on said feed plate shaped at their up per edges to engage -said ed es of the disks 9 I GEORGEfI. LESHER.

Witnes es:

CORNELIUS ZABBISKIE, v FRANCES E. Bmm'n'rr. 

